The knowledge of environmental design process describes and explains the fundations of self-conscious design of the man-made environment and is always rooted in polemical theories. Hence, theoretical foundations play a pivotal role with a strong and generalizable support in design, in order to be able to recognize the borders required in the creation process. The purpose of this research is to present an applied model of the design process taking into account the ontological approach in Islamic philosophy. The methodology of this paper is comparative and argumentative. In this regard, a series of similar and equal orders in the basics of Islamic ontology (perceptions and types of essence of perception and essence levels) and phenomenology, in proportion to the process of creating and visualizing an artistic product, in order to establish a functional model in The architecture design process is compared and explained. The research approach is a five-dimensional model of "Tarif, Tabiin, Tasvir, Tadvin and Talif" in the process of architectural design in accordance with the varieties of substance and human perception. In the Tarif step, in accordance with the design theme, the principles and aspirations of the architect designer are determined by the various life-worlds, and can be received. In this step, the designer, with intellectual freedom and in various ways, expresses his conceptual and idealistic concepts of his hypothetical architecture. The second step is the Tabiin of the relative state and is interpreted and adjusted in time and field. The Tabiin step, in addition to identifying the project's nature, leads to analyze and the establishment of various diagrams of spatial relationships, functional, physical planning, and so on. In the third step, Tasvir, imagery and the role of creativity are significant and the layout of the project is created. The Tadvin step in the design process means arranging and arranging components and evaluations after the creation of the form. At this stage, the form is arranged in relation to the creation of space, and the focus is removed from the mass of architecture and the relation between mass and space is transmitted. At the step of Talif, the architectural work is of soul and life and as a living phenomenon with a distinct identity in conjunction with other phenomena in the system of the universe. The use of this proposed model in the design process, due to the experimental nature as well as the content connectivity with the principles of Islamic ontology, paves the way for a tangible understanding of the complex design path and, on the other hand, gives rise to freedom of action for designers and architects.